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Files W.F.F. Archive Patent and Equipment Records Patent File, SISDE-10, File on Patent Application for Cipher Machine, Constantly Rotating Commutator Machine, Serial No. 157,383, 1936-1938
1st Modification In Converter Type M-134-T-1; Friedman Note
Document A39610
19.69 KiB
PDF
Action on Patent Application on Converter M-134-T1-Friedman
Document A39595
23.24 KiB
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Application for A Patent for an Improvement Cryptographic Apparatus-Friedman
Document A39508
34.67 KiB
PDF
Brief Description of A Cryptographic Machine Employing A Single Cipher Commutator-Friedman
Document A39507
152.06 KiB
PDF
Brief Description of A Cryptographic Machine Employing A Single Commutator-Friedman
Document A39603
206.39 KiB
PDF
Brief Description of A Cryptographic System and Machine Employing A Single, Aperiodically-Displaced Cipher Communicator
Document A4161646
174.1 KiB
PDF
Cryptographic Apparatus Improvements In Converter M-134-T1 Patent Application, Ser. No. 157,383-Friedman
Document A39514
60.72 KiB
PDF
Cryptographic Apparatus Patent Application-Friedman
Document A39510
42.9 KiB
PDF
Description of Friedman Cryptographic Apparatus
Document A39534
259.64 KiB
PDF
Detailed Description of Modification No. 2 In Converter Type M-134-T-1-Friedman
Document A39609
164.98 KiB
PDF
Friedman Cryptographic Apparatus
Document A39539
615.79 KiB
PDF
Friedman Cryptographic Apparatus
Document A39541
325.36 KiB
PDF
Friedman Patent Application-Cryptographic Apparatus
Document A39517
63.37 KiB
PDF
Friedman Patent Application-Cryptographic Apparatus
Document A39519
22.82 KiB
PDF
Friedman Patent Application-Cryptographic Apparatus
Document A39528
38.32 KiB
PDF
Handwritten Description of Friedman Cryptographic Apparatus
Document A39530
227.69 KiB
PDF
Lengthy Description of A Cryptographic Apparatus-Friedman
Document A40335
1.11 MiB
PDF
Modification In Converter M-134-T1-Friedman; U.S. Patent 2,028,772 of January 28, 1936
Document A39600
143.07 KiB
PDF
Modification In Converter Type M-134-T1-Friedman; U.S. Patent 2,028,772
Document A39599
36.75 KiB
PDF
Modification In Converter Type M-134-T1-Friedman; U.S. Patent 2,028,772 of January 28, 1936
Document A39568
312.21 KiB
PDF
Modifications of Converter Type M-134-T-1-Friedman
Document A39554
73.05 KiB
PDF
Patent Application for Converter 134-7-1-Friedman
Document A39546
134.27 KiB
PDF
Patent Application of Friedman Cryptographic Apparatus
Document A39537
41.88 KiB
PDF
Patent Application-Cryptographic Apparatus-Friedman
Document A39512
179.05 KiB
PDF
Patent Board Meeting Decision on Converter M-134-T1-Friedman
Document A39593
42.8 KiB
PDF
Patent Board Meeting on Converter Type M-134-T-1
Document A39556
71.86 KiB
PDF
Patent Board Meeting-Friedman
Document A39550
32.18 KiB
PDF
Preliminary Description of A Single-Commutator Cryptograph Suitable for War Department "Restricted" or "Confidential" Communications-Friedman
Document A39559
105.55 KiB
PDF
Record of Military Invention: Friedman Patent Application-Cryptographic Apparatus
Document A39527
284.26 KiB
PDF
Signal Corps Patent Board Meeting on Converters M-134-T1 and M134-T-2-Friedman
Document A39590
76.72 KiB
PDF
Wiring Diagram for Single-Commutator Cryptograph-Friedman
Document A39563
230.27 KiB
PDF
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